Photos:
- 1. (c) Mike Baird, some rights reserved (CC BY)
- 2. (c) Jerry Oldenettel, some rights reserved (CC BY-NC-SA)
- 3. (c) Blake Matheson, some rights reserved (CC BY-NC)
- 4. (c) Ferran Pestaña, some rights reserved (CC BY-NC)
- 5. (c) Jack Wolf, some rights reserved (CC BY-ND)
- 6. (c) Francesco Veronesi, some rights reserved (CC BY-NC-SA)
- 7. (c) Julien Renoult, some rights reserved (CC BY), uploaded by Julien Renoult
- 8. (c) Jason Means, some rights reserved (CC BY-NC-ND)
- 9. (c) Per Verdonk, some rights reserved (CC BY-NC)
- 10. (c) Darren Bellerby, some rights reserved (CC BY)
- 11. (c) JanetandPhil, some rights reserved (CC BY-NC-ND)
- 12. (c) Mike Powers, some rights reserved (CC BY-NC-SA)
- 13. (c) Lip Kee Yap, some rights reserved (CC BY-SA)
- 14. (c) Carlos Sanchez, some rights reserved (CC BY-NC), uploaded by Carlos Sanchez
- 15. (c) Pablo Lèautaud, some rights reserved (CC BY-NC-ND), uploaded by Pablo Lèautaud
- 16. (c) Rick Leche - Photography, some rights reserved (CC BY-NC-ND)
- 17. (c) Mike Pennington, some rights reserved (CC BY-SA)
- 18. (c) Donna Pomeroy, some rights reserved (CC BY-NC), uploaded by Donna Pomeroy
- 19. (c) Patrick Coin, some rights reserved (CC BY-NC-SA)
- 20. (c) Jeff Nickel, some rights reserved (CC BY-NC-SA)
- 21. (c) 116916927065934112165, some rights reserved (CC BY-SA), uploaded by 116916927065934112165
- 22. (c) Dan Pancamo, some rights reserved (CC BY-SA)
- 23. (c) Owen Strickland, some rights reserved (CC BY-NC), uploaded by Owen Strickland
- 24. (c) Paul Roberts, some rights reserved (CC BY-NC)
- 25. (c) Greg Lasley, some rights reserved (CC BY-NC), uploaded by Greg Lasley
- 26. (c) Paul Cools, some rights reserved (CC BY-NC), uploaded by Paul Cools
- 27. (c) Alex J Burchard, some rights reserved (CC BY-NC), uploaded by Alex J Burchard
- 28. (c) Robin Gwen Agarwal, some rights reserved (CC BY-NC), uploaded by Robin Gwen Agarwal
- 29. (c) Len Blumin, some rights reserved (CC BY-NC-ND)
- 30. (c) U.S. Fish and Wildlife Service Northeast Region, some rights reserved (CC BY)
- 31. (c) Mark Kilner, some rights reserved (CC BY-NC-SA)
- 32. (c) kha, some rights reserved (CC BY-NC), uploaded by kha
- 33. (c) Len Blumin, some rights reserved (CC BY)
- 34. (c) Mdf, some rights reserved (CC BY-SA)
- 35. (c) Gary Ashley, some rights reserved (CC BY-NC)
- 36. (c) Lip Kee, some rights reserved (CC BY-SA)
- 37. (c) Jack Wolf, some rights reserved (CC BY-NC-ND)
- 38. (c) Ómar Runólfsson, some rights reserved (CC BY)
- 39. (c) Gregory "Slobirdr" Smith, some rights reserved (CC BY-SA)
- 40. (c) Avia Venefica, some rights reserved (CC BY)
- 41. (c) Steven Mlodinow, some rights reserved (CC BY-NC), uploaded by Steven Mlodinow
- 42. (c) BJ Stacey, some rights reserved (CC BY-NC)
- 43. (c) Maggie.Smith, some rights reserved (CC BY-NC)
- 44. (c) Bobby McCabe, some rights reserved (CC BY), uploaded by Bobby McCabe
- 45. (c) USFWSmidwest, some rights reserved (CC BY)
- 46. (c) David Maher, some rights reserved (CC BY-NC-SA)
- 47. (c) Bob, some rights reserved (CC BY-NC-ND)
- 48. (c) C.V. Vick, some rights reserved (CC BY-NC-ND)
- 49. (c) Victor W Fazio III, some rights reserved (CC BY-NC), uploaded by Victor W Fazio III
- 50. (c) Geoff Coe, some rights reserved (CC BY-NC-ND)
- 51. (c) Nick Chill, some rights reserved (CC BY-NC-SA)
- 52. (c) wtryan, some rights reserved (CC BY-NC)
- 53. (c) Wayne, some rights reserved (CC BY-NC)
- 54. (c) Isidro Vila Verde, some rights reserved (CC BY-NC-ND)
- 55. (c) Dan Dzurisin, some rights reserved (CC BY-NC-ND)
- 56. (c) Peter Kaminski, some rights reserved (CC BY)
- 57. (c) psweet, some rights reserved (CC BY-SA), uploaded by psweet
- 58. (c) Jim Johnson, some rights reserved (CC BY-NC-ND), uploaded by Jim Johnson
- 59. (c) Rick Leche - Photography, some rights reserved (CC BY-NC)
- 60. (c) Richard Wottrich, some rights reserved (CC BY-NC), uploaded by Richard Wottrich
- 61. (c) Andrew Reding, some rights reserved (CC BY-NC-ND)
- 62. (c) Alejandro Bayer Tamayo, some rights reserved (CC BY-SA)
- 63. (c) matlacha, some rights reserved (CC BY-NC-SA)
- 64. (c) fiddleman, some rights reserved (CC BY-NC), uploaded by fiddleman
- 65. (c) craig wilson, some rights reserved (CC BY-NC-SA), uploaded by craig wilson
- 66. (c) Chris Rohrer, some rights reserved (CC BY-NC), uploaded by Chris Rohrer
- 67. (c) Bengt Nyman, some rights reserved (CC BY)
- 68. (c) John Beetham, some rights reserved (CC BY-NC-SA)
- 69. (c) anonymous, some rights reserved (CC BY-SA)
- 70. (c) Rick Leche, some rights reserved (CC BY-NC)
- 71. (c) Doug Greenberg, some rights reserved (CC BY-NC-ND)
- 72. (c) Rick Leche, some rights reserved (CC BY-NC-ND)
- 73. (c) Robert Keereweer, some rights reserved (CC BY-NC)
- 74. (c) Luciano Giussani, some rights reserved (CC BY-NC-SA)
- 75. (c) Donald Hobern, some rights reserved (CC BY)
- 76. (c) Martin Grimm, some rights reserved (CC BY-NC), uploaded by Martin Grimm
- 77. (c) BJ Stacey, some rights reserved (CC BY-NC), uploaded by BJ Stacey
- 78. (c) Alpsdake, some rights reserved (CC BY-SA)
- 79. (c) Bill Bouton, some rights reserved (CC BY-SA)
- 80. (c) Judy Gallagher, some rights reserved (CC BY)
- 81. (c) Erin and Lance Willett, some rights reserved (CC BY-NC-ND)
- 82. (c) brendan.lally, some rights reserved (CC BY)
- 83. (c) ian wetton, some rights reserved (CC BY-NC-ND)
- 84. (c) Toño Hernández, some rights reserved (CC BY-NC)
- 85. (c) kens18, some rights reserved (CC BY-NC), uploaded by kens18
- 86. (c) Bill Carrell, some rights reserved (CC BY-NC-ND), uploaded by Bill Carrell
- 87. (c) Victor Fazio, some rights reserved (CC BY-NC-SA)
- 88. (c) Alan Vernon, some rights reserved (CC BY-NC-SA)
- 89. (c) Joseph F. Pescatore, some rights reserved (CC BY-ND)
- 90. (c) Ingrid Taylar, some rights reserved (CC BY)
- 91. (c) andriy, some rights reserved (CC BY-NC), uploaded by andriy
- 92. (c) Ralf Nowak, some rights reserved (CC BY-NC-SA)
- 93. (c) Mike's Birds, some rights reserved (CC BY-SA)
- 94. (c) Kelly Colgan Azar, some rights reserved (CC BY-ND)
- 95. (c) Laura Gooch, some rights reserved (CC BY-NC-SA)
- 96. (c) Jamie Chavez, some rights reserved (CC BY-NC)
- 97. (c) Laura Clark, some rights reserved (CC BY), uploaded by Laura Clark
- 98. (c) Yathin, some rights reserved (CC BY-NC-ND)
- 99. (c) Shenandoah National Park, some rights reserved ()
- 100. (c) Distant Hill Gardens, some rights reserved (CC BY-NC-ND)
- 101. (c) Steve Guttman NYC, some rights reserved (CC BY-NC-ND)
- 102. (c) Maris Pukitis, some rights reserved (CC BY-NC-SA)
- 103. (c) Tony Hisgett, some rights reserved (CC BY)
- 104. (c) Henry T. McLin, some rights reserved (CC BY-NC-ND)
- 105. (c) dloarie, some rights reserved (CC BY), uploaded by dloarie
- 106. (c) tukkki, some rights reserved (CC BY-NC)
- 107. (c) Tim Harding, some rights reserved (CC BY-NC-ND)
- 108. (c) Jerry A. Payne, some rights reserved (CC BY)
- 109. (c) Gordon Karre, some rights reserved (CC BY-NC), uploaded by Gordon Karre
- 110. (c) philippe, some rights reserved (CC BY-NC-ND)
- 111. (c) Joseph D Kurtz, some rights reserved (CC BY-NC), uploaded by Joseph D Kurtz
- 112. (c) Steve Thompson, some rights reserved (CC BY-NC-SA)
- 113. (c) Becky Matsubara, some rights reserved (CC BY)
- 114. (c) Ralph Arvesen, some rights reserved (CC BY-NC)
- 115. (c) Casey Weissburg, some rights reserved (CC BY-NC), uploaded by Casey Weissburg
- 116. (c) Trisha Shears, some rights reserved (CC BY-SA)
- 117. (c) Andy Jones, some rights reserved (CC BY-NC)
- 118. (c) leppyone, some rights reserved (CC BY)
- 119. (c) Martha de Jong-Lantink, some rights reserved (CC BY-NC-ND)
- 120. (c) Tim, some rights reserved (CC BY)
- 121. (c) Rafael Paredes Montesinos, some rights reserved (CC BY-NC), uploaded by Rafael Paredes Montesinos
- 122. (c) Richard Griffin, some rights reserved (CC BY-NC-SA)
- 123. (c) Francisco Caloca, some rights reserved (CC BY-NC), uploaded by Francisco Caloca
- 124. (c) Jean-Guy Dallaire, some rights reserved (CC BY-NC-ND)
- 125. (c) Eric Heupel, some rights reserved (CC BY-NC)
- 126. (c) Jenn Megyesi, some rights reserved (CC BY-NC), uploaded by Jenn Megyesi
- 127. (c) Russ Hoverman, some rights reserved (CC BY-NC), uploaded by Russ Hoverman
- 128. (c) ehpien, some rights reserved (CC BY-NC-ND)
- 129. (c) U.S. Fish and Wildlife Service Northeast Region, some rights reserved ()
- 130. (c) rbbrummitt, some rights reserved (CC BY-NC), uploaded by rbbrummitt
- 131. (c) peterichman, some rights reserved (CC BY)
- 132. (c) Kenneth Cole Schneider, some rights reserved (CC BY-NC-SA)
- 133. (c) Victor W Fazio III, some rights reserved (CC BY-NC-ND), uploaded by Victor W Fazio III
- 134. (c) Mark Dennis, some rights reserved (CC BY-NC), uploaded by Mark Dennis
- 135. (c) Michael, some rights reserved (CC BY-NC-SA)
- 136. (c) Kerry Carloy, some rights reserved (CC BY-NC), uploaded by Kerry Carloy
- 137. (c) José Antonio Linage Espinosa, some rights reserved (CC BY-NC), uploaded by José Antonio Linage Espinosa
- 138. (c) Scott Young, some rights reserved (CC BY-NC)
- 139. (c) Dawn Vornholt, some rights reserved (CC BY-NC-ND)
- 140. (c) Minette Layne, some rights reserved (CC BY-NC)
- 141. (c) Brian Wulker, some rights reserved (CC BY-NC)
- 142. (c) New-York Historical Society Museum & Library, some rights reserved (CC BY-NC-ND)
- 143. (c) Michael Hodge, some rights reserved (CC BY-NC-SA)
- 144. (c) Minette, some rights reserved (CC BY-NC)
- 145. (c) Peter Trimming, some rights reserved (CC BY)
- 146. (c) guyincognito, some rights reserved (CC BY-NC), uploaded by guyincognito
- 147. (c) Nigel, some rights reserved (CC BY)
- 148. (c) nigel, some rights reserved (CC BY)
- 149. (c) Minette Layne, some rights reserved (CC BY-SA)
- 150. (c) Kakalotli, some rights reserved (CC BY-NC), uploaded by Kakalotli
- 151. (c) Marv Elliott, some rights reserved (CC BY-NC), uploaded by Marv Elliott
- 152. (c) Heather Paul, some rights reserved (CC BY-ND)
- 153. (c) Tom Tarrant, some rights reserved (CC BY-NC-SA)
- 154. (c) Frans Vandewalle, some rights reserved (CC BY-NC)
- 155. (c) Frank Vassen, some rights reserved (CC BY)
- 156. (c) Robin Horn, some rights reserved (CC BY-NC-ND)
- 157. (c) Jerry Oldenettel, some rights reserved (CC BY-SA)
- 158. (c) Tom Benson, some rights reserved (CC BY-NC-ND)
- 159. (c) Scott Buckel, some rights reserved (CC BY-NC), uploaded by Scott Buckel
- 160. (c) Badjoby, some rights reserved (CC BY-SA)
- 161. (c) Dave Fletcher, some rights reserved (CC BY-ND)
- 162. (c) Carmelo López Abad, some rights reserved (CC BY-NC), uploaded by Carmelo López Abad
- 163. (c) NatureServe, some rights reserved (CC BY-NC-SA)
- 164. (c) kathleenfspicer, some rights reserved (CC BY-NC)
- 165. (c) Mike H, some rights reserved (CC BY-NC), uploaded by Mike H
- 166. (c) Joby Joseph, some rights reserved (CC BY-NC-SA)
- 167. (c) Ned Haight, some rights reserved (CC BY-NC-ND)
- 168. (c) Rafy Rodriguez, some rights reserved (CC BY-NC-SA)
- 169. (c) Victoria Gracia, some rights reserved (CC BY-NC-SA)
- 170. (c) Matt Tillett, some rights reserved (CC BY-NC-ND)
- 171. (c) Jeremy Meyer, some rights reserved (CC BY)
- 172. (c) Michael Woodruff, some rights reserved (CC BY)
- 173. (c) Sergey Yeliseev, some rights reserved (CC BY-NC-ND)
- 174. (c) Becky Gregory, some rights reserved (CC BY-ND)
- 175. (c) Glen Peterson, some rights reserved (CC BY-NC-SA)
- 176. (c) Matt Muir, some rights reserved (CC BY-SA)
- 177. (c) BlueRidgeKitties, some rights reserved (CC BY-NC-SA)
- 178. (c) NHMLA Community Science Program, some rights reserved (CC BY-NC), uploaded by NHMLA Community Science Program
- 179. (c) Jen Goellnitz, some rights reserved (CC BY-NC-ND)
- 180. (c) charley, some rights reserved (CC BY-NC), uploaded by charley
- 181. (c) Anita, some rights reserved (CC BY-NC)
- 182. (c) Wolfgang Siebeneich, some rights reserved (CC BY-NC), uploaded by Wolfgang Siebeneich
- 183. (c) Gavan Watson, some rights reserved (CC BY-NC-SA)
- 184. (c) Laura Gaudette, some rights reserved (CC BY), uploaded by Laura Gaudette
- 185. (c) Luke, some rights reserved (CC BY-SA), uploaded by Luke
- 186. (c) Dendroica cerulea, some rights reserved (CC BY-NC-SA)
Compiled by William Harmon
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